Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. "Exchange experts and Microsoft MVPs Richard Luckett, William Lefkovics, and Bharat Suneja have packed this book with practical guidance, useful information, and years of knowledge and experience. If you're responsible for one or more aspects of an Exchange 2007-based messaging system, keep this book close, as you'll be referring to it often!" --Scott Schnoll, Principal Technical Writer, Exchange Server Product Team, Microsoft Corporation